A wire has a resistance of $12\, ohm$. It is bent in the form of equilateral triangle. The effective resistance between any two corners of the triangle is
A$9\, ohms$
B$12\, ohms$
C$6\, ohms$
D$8/3\, ohms$
Medium
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D$8/3\, ohms$
d (d) As resistance $\propto$ Length
Resistance of each arm $ = \frac{{12}}{3} = 4\,\Omega $
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